QP7C271 July 31, 2008 32K x 8 Power-Switched and Reprogrammable PROM Features 5V 10% VCC, commercial, industrial and military Direct replacement for Cypress PROMs Windowed Packages available for re-programmability Direct replacement for bipolar PROMs OTP (One-Time-Programmable) Packages available EPROM technology 100% programmable High speed Low power - 25 ns (commercial) - 715 mW (military) - 35 ns (military) - 660 mW (commercial) CMOS for optimum speed/power Super Low standby power - 165 mW when deselected Slim 300-mil package available TTL-compatible I/O General Description The QP7C271 is a high-performance 32,768-word by 8-bit CMOS PROM. When disabled (CE HIGH), the BAR QP7C271 automatically powers down into a low-power stand-by mode. The QP7C271 is packaged in the 300-mil slim package. The QP7C271 is available in a hermetic package equipped with an erasure window to provide for re-programmability. When exposed to UV light, the PROM is erased and can be reprogrammed. The memory cells utilize proven EPROM floating gate technology and byte-wide intelligent programming algorithms. The QP7C271 offers the advantage of lower power, superior performance, and programming yield. The EPROM cell requires only 12.5V for the super voltage, and low current requirements allow for gang programming. The EPROM cells allow each memory location to be tested 100% because each location is written into, erased, and repeatedly exercised prior to encapsulation. Each PROM is also tested for AC performance to guarantee that after customer programming, the product will meet DC and AC specification limits. Reading the QP7C271 is accomplished by placing active LOW signals on CS and CE , and an active HIGH 1 BAR BAR on CS . The contents of the memory location addressed by the address lines (A0 A14) will become available 2 on the output lines (O0 O7). The device is available in windowed hermetic package (Erasable when exposed to UV light) and is also available in non-windowed OTP (One-Time-Programmable) hermetic or plastic packages. QP Semiconductor products are not authorized for use in any space applications. The inclusion of QP Semiconductor products in space applications implies that the space application manufacturer assumes all risk of such use and in doing so indemnifies QP Semiconductor against all charges. 2945 Oakmead Village Ct, Santa Clara, CA 95051 Phone: (408) 737-0992 Fax: (408) 7368708 Internet: www.qpsemi.com QP7C271 Connection Diagrams CerDIP/PDIP/Cerpack 28 Lead LLCC/LCC/PLCC QP7C271 Hermetic Packages available in both Erasable (Windowed) and OTP One-Time-Programmable (Non- Windowed) versions. Molded Plastic Packages (PDIP/PLCC) are only available as OTP (Non-Windowed). QP SEMI, 2945 Oakmead Village Court, Santa Clara, CA 95051 Page 2 of 9